class_PaymentDiscoveryFilter.php

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<?php
class PaymentDiscoveryFilter extends BaseFilter implements Filterable {
        private $actionName = "";

        protected function __construct () {
                // Call parent constructor
                parent::__construct(__CLASS__);
        }

        public final static function createPaymentDiscoveryFilter (PerformableAction $actionInstance) {
                // Get a new instance
                $filterInstance = new PaymentDiscoveryFilter();

                // Get resolver from action
                $resolverInstance = $actionInstance->getResolverInstance();

                // Is the resolver set?
                if (is_null($resolverInstance)) {
                        // Throw an exception here
                        throw new NullPointerException($filterInstance, self::EXCEPTION_IS_NULL_POINTER);
                } // END - if

                // Get the action name from resolver
                $actionName = $resolverInstance->getActionName();

                // Store it away in this class
                $filterInstance->setActionName($actionName);

                // Return the instance
                return $filterInstance;
        }

        protected final function setActionName ($actionName) {
                $this->actionName = (string) $actionName;
        }

        public final function getActionName () {
                return $this->actionName;
        }

        public function execute (Requestable $requestInstance, Responseable $responseInstance) {
                // Try to get real discovery class
                try {
                        // Get an instance from the object factory
                        $discoveryInstance = ObjectFactory::createObjectByConfiguredName($this->getActionName().'_payment_discovery', array($this));

                        // Call the discovery method
                        $discoveryInstance->discover($requestInstance);

                        // Remember this instance if all wents fine
                        Registry::getRegistry()->addInstance('payments', $discoveryInstance);
                } catch (ConfigEntryNotFoundException $e) {
                        // Something bad happend
                        $requestInstance->requestIsValid(false);

                        // Add a message to the response
                        $responseInstance->addFatalMessage('payment_config_entry_error');
                        $responseInstance->addFatalMessagePlain($e->getMessage());

                        // Abort here
                        return false;
                } catch (ClassNotFoundException $e) {
                        // Something bad happend
                        $requestInstance->requestIsValid(false);

                        // Add a message to the response
                        $responseInstance->addFatalMessage('payment_class_error');
                        $responseInstance->addFatalMessagePlain($e->getMessage());

                        // Abort here
                        return false;
                }
        }
}

// [EOF]
?>